HIGH Impact 99.5% Ethyl Alcohol Denatured 40-B Gallon Pack of 4

In this review of HIGH Impact 99.5% Ethyl Alcohol Denatured 40-B, the bottom line is simple: this is a high-purity, industrial-grade denatured ethanol best suited for laboratory use and for experienced users who need a reliable anhydrous solvent. The reviewer found the product's primary strength to be its composition - 99.5% ethanol with 0.5% ionized water - which delivers a near-anhydrous solvent that leaves minimal residue and performs well as a reaction medium or cleaning solvent. This review is written from hands-on use and customer feedback, noting both strong effectiveness and a few handling cautions.

Key Features

• High Purity: The 99.5% ethanol concentration provides a near-anhydrous solvent that minimizes water content and residue in reactions and cleaning tasks.
• Denatured Formulation: Denatured 40-B 200 proof ethanol is formulated for laboratory and industrial use and is not intended for consumption.
• Laboratory Utility: Works well as a reaction medium and source of hydrogen in transfer hydrogenation and similar organic chemistry procedures.
• Made and Packaged in USA: Packaged, shipped and made from Southern California, which may simplify sourcing and logistics for local labs.
• Low Residue: Anhydrous properties mean surfaces and equipment are left with minimal residue after evaporation, useful for sensitive processes.

Who It's For

This product is aimed at chemistry labs, educational institutions, and industrial users who require a high-purity solvent for experiments, cleaning, and reagent preparation. It is appropriate for technicians and trained students performing procedures that call for denatured, high-proof ethanol.

People who should look elsewhere include anyone seeking ethanol for consumption or cosmetic skin products, and untrained users who are not comfortable handling a highly flammable, denatured solvent with warnings for external use only.

Pros & Cons

Pros

• High ethanol content offers strong solvent performance and low residue for lab work.
• Denatured 200 proof formulation suits industrial and educational chemistry applications.
• Made and shipped from Southern California, providing a domestic sourcing option.
• Effective at cleaning and removing plant-based contaminants as reported by customers.

Cons

• Contains denaturing agents that produce a mixed scent; some users find the odor noticeable.
• Reports of undissolved white flakes were made by customers, which may require inspection before use in sensitive work.

Specifications

Our Verdict

HIGH Impact 99.5% Ethyl Alcohol Denatured 40-B is a practical, high-purity lab solvent for technicians and educators who need an effective, low-residue ethanol. It is good value for laboratory and industrial tasks where denatured 200 proof ethanol is specified, though purchasers should inspect shipments for particulate and be prepared for the denaturant scent.

Frequently Asked Questions

Is this product safe for lab use?
Yes. It is formulated for laboratory and school chemistry lab use, but handle as a flammable, denatured solvent and follow safety protocols.

Can this ethanol be used for consumable products?
No. It is denatured and labeled for external and laboratory use only and is not safe for consumption.

What should I do if I see white flakes?
Inspect the container and strain or filter before using in sensitive procedures; contact the seller if particulate is excessive.